US 11,939,867 B2
Downhole directional drilling tool
Andrew Mueller, Sugar Land, TX (US); Dennis Patrick Chesnutt, Katy, TX (US); Ke Chen, Houston, TX (US); Xiaoge Gan, Houston, TX (US); and Venkatesh Karuppiah, Sugar Land, TX (US)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/310,625
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Feb. 14, 2020, PCT No. PCT/US2020/018227
§ 371(c)(1), (2) Date Aug. 13, 2021,
PCT Pub. No. WO2020/168157, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/805,977, filed on Feb. 15, 2019.
Prior Publication US 2022/0112770 A1, Apr. 14, 2022
Int. Cl. E21B 7/06 (2006.01)
CPC E21B 7/062 (2013.01) 19 Claims
OG exemplary drawing
 
1. A downhole tool, comprising:
a directional pad configured to contact a wellbore wall at a pad contact location; and
a drill bit comprising a longitudinal axis and having at least one active cutting element, the at least one active cutting element contacting the wellbore wall at a cutting element contact location, a contact length between the cutting element contact location and the pad contact location being up to 3 in. (7.6 cm), wherein the at least one active cutting element comprises one or more active cutting elements at a first position that is further uphole than every other active cutting element of the at least one active cutting element; and
a directional pad angle between the pad contact location and the at least one active cutting element relative to the longitudinal axis, the directional pad angle being greater than 0° and less than or equal to 5°.